Neerslag — 2026
| Mois | Westland | Midden-Delfland | Différence |
|---|---|---|---|
| Jan | 104.5 mm | – | – |
| Fév | 66.3 mm | – | – |
| Mar | 44.1 mm | 4.7 mm | +39.4 |
| Avr | 3.2 mm | 2.7 mm | +0.5 |
| Mai | 39.8 mm | 39.8 mm | +0.0 |
| Juin | 72.8 mm | 72.8 mm | +0.0 |
| Juil | 9.1 mm | 8.8 mm | +0.3 |
| Aoû |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Déc | – | – | – |